Light-weight bicycle crankshaft assembly utilizing two-piece axl

Details Light-weight bicycle crankshaft assembly utilizing two-piece axl Light-weight bicycle crankshaft assembly utilizing two-piece axl

1993-08-23

1996-02-27

Bonck, Rodney H.

Machine element or mechanism

Elements

Cranks and pedals

745942, 280259, 2802811, 384545, G05G 114

Patent

active

054939372

ABSTRACT:
A light-weight, strong and rigid bicycle crankshaft assembly utilizing a two-piece spindle. Each spindle piece is integrally joined to a crank arm, and this joint, as well as the joint of the crank arm and the pedal tube, is reinforced with gussets. The two spindle pieces themselves are connected by means of a simple allen bolt within the interior of the bottom bracket shell, and this connection is thereby protected from the elements. As the two spindle pieces are pulled together by the allen bolt, they exert opposing forces on the inner race of a cartridge bearing, thereby fixing the lateral location of the spindle within the bottom bracket without exerting pre-load on the bearings. Proper alignment is easily accomplished by means of one or more spacers placed on either side of this inner race of the cartridge bearing.

REFERENCES:
patent: 650412 (1900-05-01), McLellan
patent: 846239 (1907-03-01), Osborne
patent: 4704919 (1987-11-01), Durham
patent: 4793208 (1988-12-01), Bregnard et al.

Affiliated with

Also associated with

Rating

Light-weight bicycle crankshaft assembly utilizing two-piece axl does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light-weight bicycle crankshaft assembly utilizing two-piece axl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light-weight bicycle crankshaft assembly utilizing two-piece axl will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1671868